| Title | Author |
|---|---|
| L Slash Heart Ranch | |
| La Prele Creek, Oregon Trail crossing of | WyoHistory.org |
| Lake De Smet and Father De Smet Monument | |
| Lamoreaux family and 1868 wagon train attack | Rebecca Hein |
| Lance Creek Oil Field | Rebecca Hein |
| Lander Trail | |
| Lander Trail | Terry A. Del Bene |
| Lander Trail, New Fork River Crossing | Clint Gilchrist |
| Lantz, Daniel, 1850 emigrant grave of | Randy Brown |
| Laramie County, Wyoming | Marguerite Herman |